Remove deprecated destination grammar (#2753)

Fixes #1715

## Checklist

- [/] I have added
[tests](https://www.cursorless.org/docs/contributing/test-case-recorder/)
- [x] I have updated the
[docs](https://github.com/cursorless-dev/cursorless/tree/main/docs) and
[cheatsheet](https://github.com/cursorless-dev/cursorless/tree/main/cursorless-talon/src/cheatsheet)
- [x] I have not broken the cheatsheet

Author: AndreasArvidsson

cursorless-talon/src/targets/destination.py

@@ -1,6 +1,6 @@
 from typing import Union
 
-from talon import Context, Module, actions
+from talon import Module
 
 from .target_types import ListDestination, PrimitiveDestination
 
@@ -11,39 +11,12 @@
     desc="Cursorless insertion mode before/after",
 )
 mod.list("cursorless_insertion_mode_to", desc="Cursorless insertion mode to")
-mod.tag(
-    "cursorless_disable_legacy_destination",
-    desc="Disabled the Cursorless legacy destination(to after) support",
-)
-
-ctx = Context()
-ctx.matches = r"""
-tag: user.cursorless_disable_legacy_destination
-"""
 
 
-# DEPRECATED @ 2023-08-01
 @mod.capture(
-    rule="([{user.cursorless_insertion_mode_to}] {user.cursorless_insertion_mode_before_after}) | {user.cursorless_insertion_mode_to}"
-)
-def cursorless_insertion_mode(m) -> str:
-    try:
-        before_after = m.cursorless_insertion_mode_before_after
-        if hasattr(m, "cursorless_insertion_mode_to"):
-            words = m._unmapped
-            actions.app.notify(
-                f"'{' '.join(words)}' is deprecated. Please just say '{words[-1]}'"
-            )
-        return before_after
-    except AttributeError:
-        return "to"
-
-
-@ctx.capture(
-    "user.cursorless_insertion_mode",
     rule="{user.cursorless_insertion_mode_before_after} | {user.cursorless_insertion_mode_to}",
 )
-def cursorless_insertion_mode_ctx(m) -> str:
+def cursorless_insertion_mode(m) -> str:
     try:
         return m.cursorless_insertion_mode_before_after
     except AttributeError:

packages/cursorless-org-docs/src/docs/user/customization.md

@@ -204,7 +204,3 @@ _You can disable the default Cursorless reformat command by prefixing the spoken
 <user.formatters> form <user.cursorless_target>:
     user.cursorless_reformat(cursorless_target, formatters)
 ```
-
-### Disable legacy destination grammar
-
-The grammar currently supports `paste to before air`. This grammar is considered deprecated/legacy and replaced by `paste before air`. You can today disable this legacy grammar by enabling the tag `user.cursorless_disable_legacy_destination`